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The dielectric properties and resistance degradation behavior of BCG‐doped BaTiO3‐based ceramics were investigated, where BCG consists of BaO, CaO, and SiO2. In oxide ceramics, oxygen vacancies have an important effect on degradation behaviors. X‐ray diffraction was employed to analyze the occupancy of Ca2+ in the Ba sites or Ti sites with different BCG contents. For the light‐doped, Ca2+ mainly occupy...
Chassis plates are mainly used in marine atmospheric environment and play an important role in protecting the internal components from disruption and extending the life of equipment. This paper took coating material (Model: TB06-9+TS70-1) as the test object and studied the main failure mechanism. It was found that Hinderliter model could be the main performance degradation indicators according to...
The protective properties of organic coatings for internal applications of plane cabin are generally evaluated by means of accelerated degradation laboratory tests, including electrochemical techniques. The coatings are stressed by different mechanical, chemical, thermal loads and the effects on the protective properties can be measured by using well established electrochemical techniques, like electrochemical...
Based on the traditional neutral salt fog test, a newly step-stress accelerated degradation test is designed which adds temperature as a step-stress condition. It is proved that the test process is accelerated obviously. The degradation data measured from insulation resistance of printed circuit board could be fitted into degradation curves. Using Arrhenius Equation to build temperature accelerating...
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